bag of words 物体检测 bag of words
matlab怎么组件bag of words
题目没写错吗？A-D都不对啊？我猜原题是“In the bag he found a piece of paper on which some special words were written”之类的吧，答案是B，是由“write some special words on a piece of paper”转换而来的……因为不能把句子里的“on”去掉，所以A是错的……
...suchasbag
不要泄露秘密、“to let the cat out of the bag”，它的意思是“揭露一个秘密”，尤其是很重要、关键的那种。
关于这个词组的记载可以追溯到1760年，但据说此前一两百年就有这种说法了。
早在超市（或杂货店）出现之前，人们通常在当地的市场买菜。
农民和商人们在那里叫卖蔬菜水果、鸡蛋面包之类，此外还会出售肉类和家禽，通常都是些活的动物。
在一些特殊的场合（如节日盛宴），乳猪是采购单上一样很抢手的食物。
由于乳猪会乱动，当顾客挑选好并结账后，商人为了运送方便就把猪塞进一个帆布口袋（poke）里递给顾客。
然而，市场上的许多交易并不光明磊落，奸商有时会利用顾客一时走神，把一只流浪猫冒充乳猪放进袋子里。
直到顾客回家，“把猫从袋子里拿出来”（let the cat out of the bag），才发现这个骗局。
所以这个词组意味着是一个意外的，但通常令人讨厌的发现。
据说这也是谚语“不要买装在袋子里的猪”（don"t buy a pig in a poke）的由来，也就是“不要不看现货就买东西”的意思。
而the World Wide Words website的经营者Michael Quinion对这个故事表示怀疑，他指出猫在袋子里会变得极度狂躁，因此很难把它误当成一头小猪。
也许这个词组是来自于某个人的经历，由于某种原因有一只猫在他袋子里，而戏剧性的效果则使这个故事广为流传。
连词成句1.with,they,books,old,the,bag,filled,many2.wrote,on,cardboard,...
1 They filled the old bag with many books.2 Teacher wrote the words on a piece of the cardboard.3.Danny can guess what will happen to you.4.We should put,thermos on the right side,5.Some children put the jar into the water16.C 17D 18E 19 A 20 G好久不做了，有点慢，有些单词输入错了，我帮你改过了
I. Listen and write the missing words.
1. It"s _in___ France.2. You can _take___ a taxi to any place.3. It"s on the __intersection_______ of Wall Street and First Street.4. On __Sundays________ I clean my apartment.5. Let"s go by _bike___. It"s not very far from here.6. Tom is my __husband_____. We got married in Japan in 1999.7. The hospital is ___far_____ from the shopping center.8. Hi, Tom. ____what_________ you doing?9. That jacket is too big. Try a different ___one____________.10. Nice to meet you, Hana. Where are ____they___________?11. I have a _tour_____ of the lake.12. That is a __letter____ for you.13. What is she _doing____?14. What does Alice __look______ like?15. I need a __bag__________ for all my books and papers.16. She is really __cute___________.17. Turn ___left_______ on Wall Street.18. I am a __deliver_____. I have to get food to my customers fast.19. I don"t have a lot of time to watch TV. Sunday _mornings_ are about the only time I do it.